Versatile and sturdy with a nearly endless list of applications passive fire protection from SBI is simply peerless. This Micore-300 Mineral Fiber Insulation Board features slag wool mineral fiber construction for extra safety and durability. This pack contains four exceptionally high-quality Micore-300 boards. These protective insulating boards make a great addition to homemade stove boards fireplace framing and more. SBI’s high-quality materials are among the finest in the industry so you can’t go wrong with this stellar Mineral Fiber Insulation Board from SBI.

SBI 48″ x 24″ x 1/2″ Box of Micore 300 Mineral Fiber Boards 4 Units
$74.75